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Second Vehicle Kit for Roadmaster InvisiBrake Braking System

Second Vehicle Kit for Roadmaster InvisiBrake Braking System

Item # RM-98700
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This second vehicle kit helps transfer your InvisiBrake supplemental braking system (RM-8700) to another vehicle or tow 2 vehicles using 1 InvisiBrake controller. 1-800-940-8924 to order Roadmaster accessories and parts part number RM-98700 or order online at Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Second Vehicle Kit for Roadmaster InvisiBrake Braking System. Accessories and Parts reviews from real customers.
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  • Reviews (44)
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  • Videos (6)
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Roadmaster Accessories and Parts - RM-98700

  • Tow Bar Braking Systems
  • Second Vehicle Kit
  • Roadmaster

This second vehicle kit helps transfer your InvisiBrake supplemental braking system (RM-8700) to another vehicle or tow 2 vehicles using 1 InvisiBrake controller.


  • Helps transfer your InvisiBrake supplemental braking system to another vehicle
  • Helps tow 2 vehicles using 1 InvisiBrake controller
    • Requires InvisiBrake air cylinder (RM-452109-10), InvisiBrake cable assembly (RM-452109), and 1/4" check valve (all sold separately)
  • Fits Roadmaster InvisiBrake Supplemental Braking System (RM-8700)
  • Includes:
    • Pulley
    • Cable Anchor Bracket
    • Brake Pedal Clamp with mounting nuts and bolts
    • Monitor wire patch cord
    • Four wire harness: breakaway, power and ground
    • Breakaway Cable
    • Breakaway Switch, pin and ring
    • Vacuum check valves (3/8" and 1/2")
    • Vacuum line tees (3/8" and 1/2")
    • Four-wire flat harness - towed lighting
  • Limited Lifetime Warranty

98700 Roadmaster Invisi Brake New Car Kit

Installation Details RM-98700 Installation instructions

Video of Second Vehicle Kit for Roadmaster InvisiBrake Braking System

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Roadmaster Tow Bar Braking Systems - RM-98700

Today we're going to take a look at the second vehicle kit for the Roadmaster InvisiBrake Braking System. Now this kit here is designed to permanently transfer the InvisiBrake supplemental braking system from one vehicle to another. It is designed to fit the Roadmaster InvisiBrake supplemental braking system, part number RM-8700. We do sell that item separate on our website.This kit here will include everything laid out here. It includes the pulley, the cable anchor bracket, the brake pedal clamp with the mounting nuts and bolts, the monitor wire patch cord, the four-way harness, breakaway power and ground, the breakaway switch right here, the pin and the ring, the vacuum check valves, the 3/8 inch and a 1/2 inch, two of the vacuum inaudible 00:00:47, a 3/8 inch and 1/2 inch, the four wire flat harness for the towed lighting, an in line fuse holder with the included 20 amp fuse, an 1/8 inch air line, 1/4 inch nylon vacuum air line, and some rubber vacuum hoses, 1/4 inch, 3/8 inch, 1/2 inch, and the mounting hardware to install everything.Now it may also be used to add the InvisiBrake system to a new vehicle while still retaining it in the original vehicle. If that is what you're wanting to do, there are some additional components that'll be necessary to order to switch the InvisiBrake controller between the two vehicles.

The two part numbers you will need is RM-452109-10, that's the InvisiBrake air cylinder, and part number RM-452109, which is the InvisiBrake cable assembly. Using those two components with this kit will allow you to quickly and safely tow two vehicles using the same InvisiBrake controller. It does come with a nice set of installation instructions which describe how everything is installed but that should do it for the review on the second vehicle kit for the Roadmaster InvisiBrake Braking System.

Customer Reviews

Second Vehicle Kit for Roadmaster InvisiBrake Braking System - RM-98700

Average Customer Rating:  4.8 out of 5 stars   (44 Customer Reviews)

This second vehicle kit helps transfer your InvisiBrake supplemental braking system (RM-8700) to another vehicle or tow 2 vehicles using 1 InvisiBrake controller.


Reinstalled Roadmaster Invisibrake kit made unit function like a new one and loved dash light added to motorhome that shows when car brakes set.


The lights were great. Installation went as per the videos.


Recent install of Invisibrake into 2021 GMC Sierra 1500 Elevation trim level.
Attached photos. Unit is under the driver side back seat. I made a wood mount from plywood. Ram is under the foot restinch to the left of the brake pedal. The cable makes a big loop under the carpet circling back to the brake pedal. This makes a nice neat install with everything out of the way.


Great kit. Moved my Invisibrake to a new vehicle with relative ease.

Works great! No problems.
Phil T - 02/25/2022


The products were fine. The 2 stars are for etrailer customer service. The lighting kit they recommended for my CRV was not the correct one. To return it, they will charge me half of the $XX the kit cost even though it was shipped to me free. THAT IS A RIPOFF. My business will not be with [another website].


The installation went pretty well. I referenced the RM-8700 video for my 2018 Chevy Equinox. The location for the control box specified is under the rear seat, however if done so, the seat back cannot be folded down flat. As a result, I installed it in the spare tire well which worked out to be a better location. I suggest that the video be edited accordingly. Thanks.


Can’t beat the service!! The great customer service.


Had all my parts and than some for different vacuum systems.


Received the product as advertised and as always provided excellent customer service and prompt response. I plan to install the product on another vehicle but have not yet begun that process, so I have no comments for that as yet. I do appreciate the support and responsiveness of and will continue to make them my first choice for towing products when I need them.


After watching etrailer videos to determine what parts I would need for a second vehicle invisibrake install, I placed a call to etrailer. I made contact with Amy, a rep with etrailer. Amy assisted me in getting the right parts and removed any doubt that I had about me just placing an order without assistance.
I placed my order and to my surprise, within a couple of days the parts were setting at my front door. After opening the box to do an inventory, I was amazed at the proper labeling of all items, and everything I had ordered was there.
I am extremely pleased with the professionalism and knowledge of Amy. I will definitely use etrailer for my future needs.
Way to go, and Thank You for making this purchase such a positive experience!


Kit contained everything I needed to transfer an Invisibrake from a 2002 Jeep Grand Cherokee to a 2017 Jeep Cherokee. Medium to high level skill required for install. Modifications to trim/interior parts required to make the Invisibrake components fit.


GREAT ordering customer service! I Needed to get some Roadmaster parts very quickly and Anna got my order in and got them to ship it out that night so I would get it when I needed it! And their prices were better than anyone elses. Will be ordering some hitches from them soon!


Super fast delivery, thanks much to Carol & George


Still holding up to the sun and desert dry air!


I love the quality of the products I ordered. Customer relations was very good as well, they kept me informed and even though it took several weeks and etrailer had to wait on items to get to them, I was communicated to well. I know it’s important in who you deal within this day and time and you can trust etrailer.


It is not often that I offer acolytes to companies. Let's face it, companies "should" be in business to satisfy the needs of its customers. This company has exceptions to that. They maintain their website with not only products but instructions and assistance. If they do not know the answer, believe it or not, they actually admitted it and transferred me to someone who could help. They provided fast service and delivery which all should but their followup is fantastic as well.
I just received the package and have not installed it as of yet but I will let all know about the installation instructions. I honestly highly recommend this company to all in need.


This kit enabled us to wire our second car so we could use the invisabrake on both vehicles. Came in 3 days and etrailer price matched it.


The kit was complete and provided all parts and connectors to complete installation. Based on the items provided I believe it is extremely over-priced, but this is not's issue, it is Roadmaster.


Parts I ordered are perfect and Etrailer is great to deal with......


Everything was in the package per inventory sheet. Installations was breeze.


As described, thank you!


Just what I needed.


I purchased this unit for a customer. I have not heard any complaints, nor had to do work on the system. That's a plus in my book. I don't shop much outside of my normal distributors, but when I do, it's nice to know that I can count on excellent customer service and feedback from your company.


Everything was as ordered and in great shape. For some reason the shipping was quite a bit slower than usual.You Guy's and Gal's are great.


Show More Reviews

See what our Experts say about this Roadmaster Accessories and Parts

  • What Is Needed to Install a Roadmaster InvisiBrake Supplemental Braking System in Second Car
    Technically, both are right. The Second Vehicle Kit for Roadmaster InvisiBrake Braking System, # RM-98700, was designed as a kit to take the InvisiBrake system out of one vehicle and permanently install the unit in another vehicle. The kit provided for new air tubing and other components that Roadmaster recommends replacing when re-installing the InvisiBrake in another vehicle. However, if you have two vehicles and you are going to be switching the InvisiBrake system between the two, then...
    view full answer...
  • Removing Roadmaster Invisibrake Supplemental Braking From One Vehicle to Install on Another
    Because you are removing the Roadmaster Invisibrake Supplemental Braking System # RM-8700 from your 2004 Jeep Wrangler, you will need to seal up the vacuum line on your 2004 Wrangler. You can do this a couple of different ways. You can leave the T-connector and then add a bolt and hose clamp to seal the hose or you can remove the T-connector and use a coupler and two hose clamps to seal the hose. The latter is my recommendation for a cleaner fix and you can use the check valve already...
    view full answer...
  • Parts Needed to Move Roadmaster Invisibrake to New Vehicle
    Yes. You can transfer your Roadmaster Invisibrake # RM-8700 to your 2021 Ford Escape Hybrid without any issues; you'll just need the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. This kit comes with all of the parts you'll need to swap the Invisibrake unit into your new Escape Hybrid. I've linked an installation video of the Invisibrake on a 2020 Escape for you to use as a guide if you're going to be installing yourself.
    view full answer...
  • How Long Does it Take to Install Roadmaster Invisibrake
    Roadmaster states that the install of their Inivisbrke part # RM-8700 normally takes around 3-5 hours which does sound right based on our experiences with it. I don't see why the removal of just the vehicle portion would take that long though so I'd maybe not fully believe that. Keep in mind there is a portion of the Invisibrake that installs on the tow vehicle too so the install should be shorter for just the tow vehicle side.
    view full answer...
  • How To Transfer Roadmaster InvisiBrake Supplemental Braking System
    In order to transfer the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700 from one vehicle to another you'll need the Second Vehicle Kit for Roadmaster InvisiBrake Braking System part # RM-98700. In regards to installation, we have several videos on the product page. If you don't see your model listed then you can use one from a similar model as most installs will be very similar.
    view full answer...
  • Will Wiring Technique Be the Same When Transferring Roadmaster InvisiBrake to 2020 Jeep Gladiator
    Yes you can wire the lighting for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 the same way on your 2020 Jeep Gladiator as you did on your Wrangler. As you can see by the cut out of the linked directions for the InvisiBrake, the wiring technique will be the same for all towed vehicles so you're set! The InvisiBrake is able to be transferred to your new Gladiator but you are going to need the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700 to...
    view full answer...
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  • Roadmaster InvisiBrake Supplemental Braking System Vehicle Installation Kit
    Since you have the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 but not all the components, I recommend the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. This will give you the components you are missing an ensure you can install your system on your vehicle. I've attached some videos to assist with the components as well as installation.
    view full answer...
  • Parts Needed To Install The Roadmaster Invisibrake In A Second Vehicle
    To install your Roadmaster Invisibrake # RM-8700 in your new vehicle you'll need the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. This kit will comes with everything you need for installation into a second vehicle, allowing you to use your Invisibrake without having to repurchase the entire system again.
    view full answer...
  • Parts Needed to Switch Roadmaster InvisiBrake Supplemental Braking System to Different Vehicle
    You can switch your Roadmaster InvisiBrake Supplemental Braking System # RM-8700 to a different vehicle - in your case a 2010 Chevy Equinox - simply with the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. I have added a link to the installation instructions as well as a video review of this kit for you to take a look at. Also, keep in mind that with your '10 Equinox you will also need the Roadmaster Stop Light Switch Kit - Chevrolet Equinox / GMC Terrain # RM-751439...
    view full answer...
  • Installation Of The Second Vehicle Kit for Roadmaster InvisiBrake Braking System
    The Invisibrake # RM-8700 activates through your motorhomes tail lights via the diode wiring installed on your Jeep so you won't be splicing the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700 into the brake lite relay kit # RM-88400. You'll need to follow the wiring diagram I've posted below instead to install the # RM-98700. Other braking systems may have you splice into the brake light switch wire to send and output signal that the vehicle is braking but the...
    view full answer...
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  • Replacement InvisiBrake Installation Kit For 2019 Jeep Cherokee
    You can get the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. This will give you everything you need to set up the invisbrake system in your Jeep cherokee. Additionally to this you will need the Replacement Cylinder for Roadmaster Brake Master and Even Brake Supplemental Braking System # RM-452109-10 and the Replacement Cable for Roadmaster Invisibrake Braking System # RM-452109
    view full answer...
  • Base Plate Kit, Wiring, and Invisibrake Second Vehicle Kit for 2018 Jeep Wrangler Unlimited
    The first thing you'll need is a base plate kit that fits your 2018 Jeep Wrangler JL Unlimited which for that the Roadmaster Direct Connect kit part # RM-521453-5 is the best way to go for your Sterling # RM-576. To complete your Invisibrake setup you'd need the second vehicle kit part # RM-98700. For lighting you can use the diode kit, # RM-15267, and not have to worry about cutting into the taillight housing. This will splice into your taillight wiring to allow your tow vehicle to control...
    view full answer...
  • Using The RoadMaster InvisBrake Second Vehicle Kit To Install On New Vehicle
    Thank you for you patience, I spoke to my tech guy at Roadmaster about the extra parts it says you need in the instructions. The 1/4 inch check valve it calls for is to plug the vacuum line on the original vehicle so you can swap the systems back and forth with out causing a vacuum leak. This part you will not need at all because you are not swapping vehicles. You will need the Replacement Cylinder for Roadmaster Brake Master and Even Brake Supplemental Braking System # RM-452109-10 and...
    view full answer...
  • Tow Bar Wiring and Braking System for Flat Towing 2020 Jeep Gladiator
    Assuming your RV is already equipped with its end of the Roadmaster InvisiBrake System # RM-8700 the Second Vehicle Kit # RM-98700 will work perfectly to equip your Jeep Gladiator with the needed components. In addition to this kit you will also need the Stop Light Switch Kit # RM-751497 to ensure proper operation. I verified this with my contact at Roadmaster. The Brake-Lite Relay Kit # RM-88400 that you mentioned is actually not needed. The Roadmaster Diode Flexo-Coil Wiring Kit #...
    view full answer...
  • Parts Needed to Transfer Roadmaster InvisiBrake to 2017 Jeep Cherokee
    The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 is a confirmed fit for your 2017 Jeep Cherokee as long as it does NOT have a non-electric hydroboost braking system. You will need the Stop Light Switch Kit # RM-751471 for the Cherokee as well as the new car kit # RM-98700 which is shown in the linked video. For Roadmaster base plates you can refer to the linked page that displays four kits for the various versions. Note that the Sterling tow bar's safety cable anchors do...
    view full answer...
  • Roadmaster Invisibrake Second Car Kit and Base Plate for 2014 Ford Fusion Titanium
    To install your Roadmaster Invisibrake # RM-8700 on your 2014 Ford Fusion Hybrid you will need the Second Vehicle Install Kit # RM-98700. For base plates for your Fusion that will work with your Falcon All Terrain I recommend sticking with the Roadmaster family. It will make it easiest to connect your baseplate and tow bar. If your Fusion has adaptive cruise control, I recommend the Direct-Connect Base Plate Kit # RM-524437-5. If your Fusion does not have adaptive cruise control, then...
    view full answer...
  • Vacuum Line and Tee Fitting Availability for Roadmaster Invisibrake
    Yes, all of the parts you mentioned are available separately through us. I have linked them below to see them all individually. # RM-452140 # RM-452141 # RM-452137 # RM-452136 # RM-452118 # RM-452116
    view full answer...
  • What are the Dimensions of SMI replacement Check Valve # SM99909
    I measured the Replacement Check Valve for SMI Supplemental Braking Systems # SM99909 for you. The overall diameter at the barbs for each end is 0.42 inches. The more narrow parts at the base have a diameter of 0.37 inches. The center, widest section is 0.76 inches in diameter. The overall length is 1.66 inches. This valve was designed to work with the Air Force One SM99202 or # SM99243 and Stay-IN-Play Duo # SM99251. So if you have one of these systems this is the correct replacement. If...
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  • Parts Needed to Flat Tow a 2016 Jeep Wrangler Sahara
    In order to flat tow your 2016 Jeep Wrangler Sahara you will need at least 5 main parts. Those parts being a base plate kit, tow bar, safety cables, tow bar wiring and supplemental braking system (which you already have). I have listed those parts out below along with a brief description of their purpose. Base Plate Kit: This is a custom fit part that provides the attachment points needed on your Jeep for the tow bar. - Roadmaster Direct-Connect Base Plate Kit # RM-521448-5 (works with...
    view full answer...
  • Recommended Flat Towing Equipment For A 2003 Jeep Wrangler
    The Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56202 is a confirmed fit for your 2003 Jeep Wrangler, but in my honest opinion it's an inferior product to a splice in diode kit like the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 which will also come with the adapter cable and 6-way socket. With the Hopkins wiring harness you'll still be doing basically the same amount of labor minus splicing the wires and diodes together and there's a much larger...
    view full answer...
  • Parts Needed To Transfer A Roadmaster InvisiBrake From A 2012 Jeep Liberty To A Jeep Grand Cherokee
    To swap your Roadmaster InvisiBrake # RM-8700 into your new 2020 Jeep Grand Cherokee you'll want the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700. This is going to include everything you need to complete the transfer to you Jeep. You'll also want the Roadmaster Stop Light Switch Kit # RM-751449 to ensure proper operation of your system. If your owner's manual states to remove the negative battery cable it's typically to prevent harm to components of your vehicle...
    view full answer...
  • Need A 7-Way to 7-Way Cable To Fit Between My RV and 2015 Jeep Wrangler Unlimited While Flat Towing
    Sounds like you need a 7-way to 7-way wiring cable to connect your 2015 Jeep Wrangler Unlimited to your RV when flat towing. You will need a 7-way plug and lead wire and a 7-way connector end. I recommend the WesBarg 7-Way, RV Style Connector # WG54006-043 and a Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector # PK12706. You will have to wire the Pollak connector on the other end of the WesBerg cable to connect your RV and Jeep. I like the coil design of this cable because it...
    view full answer...
  • Recommended Base Plates for 2012 Jeep Liberty to Use with Roadmaster Sterling Tow Bar
    If your 2012 Jeep Liberty doesn't have a rockguard or skid plate then I recommend the Roadmaster EZ Base Plate Kit # 521433-1. If you do have a rockguard or skid plate then you will want the Roadmaster EZ Base Plate Kit # 521434-1, which will actually replace the rockguard/skid plate. Both of these options are directly compatible with your existing Sterling Tow Bar. Your current Roadmaster InvisiBrake # RM-8700 will also work great with your Jeep Liberty. If you are using a lighting solution...
    view full answer...
  • Parts Needed To Flat Tow a 2022 Chevrolet Blazer Behind a 2018 Newmar Baystar Motorhome
    Yes, we will have all the components you will need to be able to flat tow your 2022 Chevrolet Blazer. First you will need to select the correct baseplate. The Roadmaster Direct-Connect Base Plate Kit # RM28VR will only fit the 2.0L turbo engine models. While the Roadmaster Direct-Connect Base Plate Kit # RM-523204-5 will work with the 2.5L and 3.6L engines available on the Blazer. Both these baseplates are designed to connect to Roadmaster Direct connect tow bars like the Nighthawk # RM-676....
    view full answer...

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